Theoretical probablity=desiredoutcomes/totalpossibleoutcomes
desired=number of white marbles=20
total possible=red+blue+white=30+50+20=100
so theoretical probablity=20/100=2/10=0.2=20%
Answer:

Step-by-step explanation:
we have a exponential function of the form

where
y is the population of bacteria
a is the initial value
r is the rate of growth
x is the number of hours
we have
a=3,000 bacteria

For x=2, y=3,300
substitute


Apply square root both sides




substitute in the equation


<u><em>Predict how many bacteria will be present after 16 hours</em></u>
For x=16 hours
substitute


Answer:
v=2144.66
Step-by-step explanation:
formula: 4/2 (pi) (r)³
................
2*3/8
whenever dividing the second fraction flips
2*3/8
You can divide by 2 for 2 and 8
2/2=1
8/2=4
1/4*3
=3/4
Answer is 3/4